Map out land owned by the federal government.

Since the federal government owns land in every state, we as a people should know the exact areas of the land. Since our nation is made of land, where the federal lines cross state lines should be fully known and maps of its area should be able for viewing by the people. Really, we do not know what areas are controlled by the federal government. The area could be on our homes, jobs, a kids sport's field. Since use of the land is given by taxation, we need to know the area of the land, so we are not charged for using the federal land that we do not even know about. So, the land that the federal government owns should be located, and its area shown on maps for public viewing in each state that has federal land in it.